Sandipan Das has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/16610
Change subject: arch-power: Add fixed-point byte-reversed load and store
instructions
......................................................................
arch-power: Add fixed-point byte-reversed load and store instructions
This adds the following load and store instructions:
* Load Halfword Byte-Reverse Indexed (lhbrx)
* Load Word Byte-Reverse Indexed (lwbrx)
* Load Doubleword Byte-Reverse Indexed (ldbrx)
* Store Halfword Byte-Reverse Indexed (sthbrx)
* Store Word Byte-Reverse Indexed (stwbrx)
* Store Doubleword Byte-Reverse Indexed (stdbrx)
Change-Id: I9f211bb4e3007ca09002a9ba4e5afb4b2e67cddd
Signed-off-by: Sandipan Das <[email protected]>
---
M src/arch/power/isa/decoder.isa
1 file changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/arch/power/isa/decoder.isa b/src/arch/power/isa/decoder.isa
index bf2692c..b204f30 100644
--- a/src/arch/power/isa/decoder.isa
+++ b/src/arch/power/isa/decoder.isa
@@ -266,10 +266,13 @@
87: lbzx({{ Rt = Mem_ub; }});
279: lhzx({{ Rt = Mem_uh; }});
343: lhax({{ Rt = Mem_sh; }});
+ 790: lhbrx({{ Rt = swap_byte(Mem_uh); }});
23: lwzx({{ Rt = Mem_uw; }});
341: lwax({{ Rt = Mem_sw; }});
20: lwarx({{ Rt = Mem_uw; Rsv = 1; RsvLen = 4; RsvAddr = EA;
}});
+ 534: lwbrx({{ Rt = swap_byte(Mem_uw); }});
21: ldx({{ Rt = Mem; }});
+ 532: ldbrx({{ Rt = swap_byte(Mem); }});
535: lfsx({{ Ft_sf = Mem_sf; }});
599: lfdx({{ Ft = Mem_df; }});
855: lfiwax({{ Ft_uw = Mem; }});
@@ -289,6 +292,7 @@
format StoreIndexOp {
215: stbx({{ Mem_ub = Rs_ub; }});
407: sthx({{ Mem_uh = Rs_uh; }});
+ 918: sthbrx({{ Mem_uh = swap_byte(Rs_uh); }});
151: stwx({{ Mem_uw = Rs_uw; }});
150: stwcx({{
bool store_performed = false;
@@ -306,7 +310,9 @@
CR = cr;
Rsv = 0;
}});
+ 662: stwbrx({{ Mem_uw = swap_byte(Rs_uw); }});
149: stdx({{ Mem = Rs }});
+ 660: stdbrx({{ Mem = swap_byte(Rs); }});
}
format StoreIndexUpdateOp {
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I9f211bb4e3007ca09002a9ba4e5afb4b2e67cddd
Gerrit-Change-Number: 16610
Gerrit-PatchSet: 1
Gerrit-Owner: Sandipan Das <[email protected]>
Gerrit-MessageType: newchange
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